EDTA.Na₄ (Tetrasodium Ethylenediaminetetraacetate) is a chelation agent used to bind metal ions and prevent metal-induced degradation in various applications. It is highly effective in water treatment, cosmetic formulations, and industrial cleaning. EDTA.Na₄ is commonly used to improve the stability of products, prevent scale formation, and enhance the performance of detergents, shampoos, and other personal care products.